Dr. Chris Copperwheat explains: “The discovery of multiple rocky planets with surface temperatures which allow for liquid water make this amazing system an exciting future target in the search for life.”

To find the planets and make the calculations the scientests relied on a high tech robotic telescope located in Liverpool. As the planets crossed their respective star the telescope detected dips in brightness and recorded the results.

Scientests then studied the results and made conclusions about the planets in the TRAPPIST-1 system.